US6625477B1 - Apparatus and method for identifying and charging batteries of different types - Google Patents

Apparatus and method for identifying and charging batteries of different types Download PDF

Info

Publication number
US6625477B1
US6625477B1 US08/668,647 US66864796A US6625477B1 US 6625477 B1 US6625477 B1 US 6625477B1 US 66864796 A US66864796 A US 66864796A US 6625477 B1 US6625477 B1 US 6625477B1
Authority
US
United States
Prior art keywords
battery
voltage
terminal
identification
battery pack
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US08/668,647
Other languages
English (en)
Inventor
Ivan Nelson Wakefield
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ericsson Inc
Original Assignee
Ericsson Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ericsson Inc filed Critical Ericsson Inc
Assigned to ERICSSON INC. reassignment ERICSSON INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WAKEFIELD, IVAN NELSON
Priority to US08/668,647 priority Critical patent/US6625477B1/en
Priority to EP97929902A priority patent/EP0904623B1/en
Priority to AU33853/97A priority patent/AU3385397A/en
Priority to EE9800431A priority patent/EE04073B1/xx
Priority to BR9709693A priority patent/BR9709693A/pt
Priority to PCT/US1997/010041 priority patent/WO1997048163A1/en
Priority to DE69711875T priority patent/DE69711875T2/de
Priority to CN97195471A priority patent/CN1089499C/zh
Priority to HK99103120A priority patent/HK1018129A1/xx
Publication of US6625477B1 publication Critical patent/US6625477B1/en
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00038—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange using passive battery identification means, e.g. resistors or capacitors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with provisions for charging different types of batteries

Definitions

  • the present invention relates generally to the charging of batteries and, in particular, to an apparatus and method for identifying batteries of different types and adapting the manner in which such batteries are charged in accordance therewith.
  • rechargeable batteries to power electronic devices is well known and desirable in order to minimize cost and maximize use of resources.
  • batteries have been utilized extensively with handheld mobile telephones and other radio communication equipment among other items.
  • a battery is able to provide adequate power between chargings.
  • several different types of rechargeable batteries have been and are continuing to be developed. This includes batteries made of different materials, such as nickel cadmium, nickel metal hydride, and lithium. Because each type of rechargeable battery has an optimum manner in which it should be charged, it is desirable for a charger to be tailored for each one instead of providing current in the same manner. This requires the charging apparatus to be able to identify the type of battery and provide the charging current in a manner preferred for such battery type.
  • a primary objective of the present invention is to provide an apparatus having the ability to identify different types of batteries.
  • Another object of the present invention is to provide an apparatus having the ability to charge different types of rechargeable batteries.
  • a further object of the present invention is to provide an apparatus having the ability to charge different types of rechargeable batteries according to charging algorithms particularly applicable thereto.
  • Yet another object of the present invention is to provide an apparatus having the ability to charge rechargeable batteries of different capacities.
  • Still another object of the present invention is to provide a handheld mobile telephone including an apparatus which is able to identify and charge different types of rechargeable batteries.
  • Another object of the present invention is to provide a handheld mobile telephone including an apparatus which automatically identifies the type of battery connected thereto.
  • a further object of the present invention is to provide a battery charger accessory having the ability to identify and charge different types of rechargeable batteries.
  • An object of the present invention is to provide an interface between a handheld mobile telephone and a battery pack which permits the use of different batteries.
  • Yet another object of the present invention is to provide an interface between a handheld mobile telephone and a battery pack which automatically identifies the type of battery therein so that it may be charged according to a particular charging algorithm applicable thereto.
  • Another object of the present invention is to provide a method of identifying the type of battery to be charged and adapting the manner in which the battery is charged in response thereto.
  • an apparatus for identifying batteries of different types Each battery includes a positive terminal, a negative terminal, and an identification terminal connected to a tap between two cells of the battery.
  • the apparatus includes a positive contact positioned so as to engage the positive terminal of a battery, a negative contact positioned so as to engage the negative terminal of the battery, an identification contact positioned so as to receive a tap voltage from the identification terminal of the battery indicative of a particular battery type, and a microcomputer connected to the positive, negative, and identification contacts, wherein the microcomputer identifies the particular type of the battery on the basis of where the tap voltage lies with respect to a plurality of specified voltage ranges.
  • the apparatus may also include a circuit connected to the microcomputer, the positive contact, the negative contact, and the identification contact for supplying a charging current to the battery in accordance with a specified charging algorithm applicable to the particular battery type.
  • a battery pack for a handheld mobile telephone including a housing, a battery having a plurality of cells positioned within the housing, and an interface for electrically coupling the battery to the handheld mobile telephone, wherein the type of battery positioned within the housing is distinguished by a tap voltage provided by the identification terminal.
  • the battery interface further includes a positive terminal connected to the battery at a first end and a negative terminal connected to the battery at a second end, as well as an identification terminal connected to a tap between a pair of cells in the battery.
  • a handheld mobile telephone in a third aspect of the present invention, is disclosed as including a main housing, a signal processing circuit located within the main housing for operating the handheld mobile telephone in a particular mode of communication, a battery pack attached to the main housing for powering the handheld mobile telephone, an interface for electrically coupling the battery pack with the signal processing circuit, where the interface includes an identification contact for receiving a tap voltage from the battery pack indicative of a particular battery type, and circuitry associated with the signal processing circuit for identifying the particular type of battery pack from the tap voltage.
  • the handheld mobile telephone may also include circuitry associated with the signal processing circuit for charging the battery pack in accordance with a particular charging algorithm applicable to the electrical characteristics of the battery pack.
  • a method of identifying different types of batteries includes the steps of positioning a tap between adjacent cells of each battery, connecting an identification terminal to the tap so that a tap voltage indicative of a particular battery type is provided thereto, electrically coupling the battery to a microcomputer by means of a positive terminal, a negative terminal, and the identification terminal, comparing the tap voltage to a plurality of specified voltage ranges stored in the microcomputer, and identifying the particular type of the battery from the specified voltage range within which the tap voltage lies.
  • the method may also include the step of supplying a charging current to the battery in accordance with a charging algorithm in the microcomputer applicable to the particular battery type.
  • FIG. 1 is a front perspective view of a handheld mobile telephone including a battery identification and charging apparatus in accordance with the present invention
  • FIG. 2 is a partial rear perspective view of the handheld mobile telephone depicted in FIG. 1, where the battery pack has been removed for clarity;
  • FIG. 3 is a partial perspective view of a battery charger accessory including the battery identification and charging apparatus in accordance with the present invention
  • FIG. 4 is a schematic diagram depicting the battery identification and charging apparatus of the present invention which may be utilized in the handheld mobile telephone and battery charger accessory shown in FIGS. 1-3;
  • FIG. 5A is a schematic diagram of a battery pack receivable in the handheld mobile telephone of FIGS. 1-2 and the battery charger accessory of FIG. 3 including a first type of battery;
  • FIG. 5B is a schematic diagram of a battery pack receivable in the handheld mobile telephone of FIGS. 1-2 and the battery charger accessory of FIG. 3 including a second type of battery.
  • FIG. 1 depicts a handheld mobile telephone 10 including a battery charging apparatus and battery pack interface in accordance with the present invention.
  • handheld mobile telephone 10 includes a main housing 12 , in which a top surface 14 thereof offers access to a keypad (not shown) behind a cover 16 , a display 18 , and a speaker 20 .
  • handheld mobile telephone 10 further includes signal processing circuitry within main housing 12 for operating it in a designated mode of communication.
  • a rear surface 24 of main housing 12 has a cavity 26 in which a battery pack 28 of compatible shape and size may be positioned to power handheld mobile telephone 10 .
  • Battery pack 28 is not shown in FIG. 2 in order to see an interface 30 located in cavity 26 which is provided to electrically couple battery pack 28 with handheld mobile telephone 10 .
  • interface 30 includes a first contact 32 , a second contact 34 , and a third contact 36 .
  • First contact 32 is preferably a positive contact positioned so as to engage a positive terminal of battery pack 28 .
  • each battery pack 28 A and 28 B may have distinctly positioned positive terminals which necessitate separate first contacts 32 A and 32 B. It will be noted in FIG. 4 that such first contacts 32 A and 32 B would be connected in parallel in order to provide power to handheld mobile telephone 10 .
  • second contact 34 is preferably a negative contact positioned so as to engage a negative terminal of battery pack 28 since the negative terminals of battery packs 28 A and 28 B are preferably positioned in like locations. Accordingly, it will be seen in FIG. 4 that first contacts 32 A and 32 B will be utilized to receive power from battery packs 28 A and 28 B, respectively, while second contact 34 is utilized as ground (although the respective functions of these contacts may be reversed).
  • third contact 36 is utilized as an identification contact.
  • third contact 36 is positioned adjacent second contact 34 so as not to interfere with engagement of first contacts 32 A and 32 B (although third contact 36 may be positioned anywhere along interface 30 ).
  • battery pack 28 different types may be utilized in battery pack 28 , including those made of nickel metal hydride as represented by battery pack 28 A and lithium (e.g., liquid lithium ion and plastic lithium ion) as represented by battery pack 28 B. While the nickel metal hydride and lithium battery types are rechargeable, each has a preferred manner of charging for optimum usage. Further, such batteries may be configured to have different voltage capacities. In the handheld mobile telephone environment, however, the batteries will generally provide a voltage in the range of approximately three to approximately four volts.
  • handheld mobile telephone 10 include circuitry, indicated generally by the numeral 38 in FIG. 4, which would enable battery pack 28 to be charged when positioned within cavity 26 .
  • charging circuitry 38 would preferably be associated with the signal processing circuit and provide current to battery pack 28 for charging in accordance with a specified charging algorithm applicable to the particular battery type therein and the electrical characteristics thereof.
  • charging circuitry 38 may provide a direct path between battery pack 28 and a current source 40 (e.g., an AC/DC adapter from an ordinary wall outlet connected to a complementary slot 41 in handheld mobile telephone 10 ), it is preferred that a switching device 42 (such as a field effect transistor) be positioned between current source 40 and the junction of first contacts 32 A and 32 B to better vary the charging process.
  • a switching device 42 such as a field effect transistor
  • a microcomputer 44 or other similar printed circuit module in handheld mobile telephone 10 contains the various charging algorithms for the different battery types and is therefore responsible for the opening and closing of switching device 42 in this embodiment. Microcomputer 44 is also utilized to identify the particular battery type in battery pack 28 , as described in greater detail below.
  • charging circuit 38 reads a voltage V T received at third contact 36 to determine battery type.
  • Voltage V T is provided to microcomputer 44 at an input 43 by a separate identification terminal 62 on battery pack 28 connected to a tap 64 in battery 54 .
  • battery 54 has a plurality of cells 66 and that tap 64 is positioned between two adjacent cells 66 A and 66 B. In this way, only a portion of the overall battery voltage is provided as tap voltage V T . It is preferred that cells 66 A and 66 B be those adjacent negative terminal 60 so that tap 64 is consistently positioned with regard to each battery type.
  • tap voltage V T provided by a four cell battery is approximately one-fourth the overall battery voltage and a two cell battery (e.g., lithium type in FIG. 5B) is one-half the overall battery voltage.
  • tap 64 may be positioned between any two adjacent cells 66 so long as it provides a tap voltage V T distinctive for each type of battery 54 .
  • microcomputer 44 is able to identify the particular battery type by determining which voltage range tap voltage V T resides so that the applicable charging algorithm is utilized therewith.
  • the maximum number of batteries which may be identified is a function of the number of specified voltage ranges and the unique tap voltages V T available for each particular battery type. For example, tap voltage V T will be less than 2 volts for the nickel metal hydride battery and greater than 2 volts for the lithium battery.
  • switching device 42 is modulated by charging circuitry 38 at a specified frequency to provide the level of charging current, indicated by arrow I c , required for rapid charging or trickle charging as desired.
  • Charging current I c is monitored by microcomputer 44 to verify that it is in accordance with the particular charging algorithm being utilized. This is accomplished by reading the voltage drop across a load 46 in the form of a resistor (preferably on the order of 0.10 Ohm).
  • the voltage upstream of load 46 i.e., between switching device 42 and load 46
  • V B The voltage downstream of load 46 (i.e., between load 46 and the junction of first and second contacts 32 A and 32 B) is designated as voltage V B .
  • a differential amplifier 48 is preferably located within charging circuitry 38 and receives voltages V A and V B at the inputs thereof to add gain so that the difference therebetween (represented by an output 49 of differential amplifier 48 ) sent to input 47 of microcomputer 44 is at a level which permits monitoring of charging current I c .
  • a voltage regulator 50 is preferably provided between an input 51 to microcomputer 44 and the junction of first contacts 32 A and 32 B being connected in parallel in order to provide a regulated voltage V R as a power supply to microcomputer 44 .
  • Voltage regulator 50 is also utilized to terminate charging of battery pack 28 when battery voltage V B reaches a specified level.
  • Microcomputer 44 will preferably include analog-to-digital converters at each of inputs 43 , 45 , and 47 to convert signals representing tap voltage V T , voltage V B , and the difference of voltages V A and V B , respectively.
  • battery pack 28 With respect to battery pack 28 , it will be seen in FIGS. 5A-B that it includes a housing 52 , a battery 54 positioned within housing 52 , and an interface 56 for electrically coupling battery 54 to handheld mobile telephone 10 .
  • Interface 56 includes a positive terminal 58 connected to battery 54 at a first end and a negative terminal 60 connected to battery 54 at a second end.
  • the type of battery 54 positioned within housing 52 is distinguished by means of tap voltage V T provided via identification terminal 62 which is positioned so as to engage identification contact 36 .
  • a fuse 68 may be positioned between battery 54 and negative terminal 60 .
  • a protection circuit 70 may be positioned between fuse 68 and negative terminal 60 (see lithium type battery pack in FIG. 5B) in order to prevent battery 54 B from reaching a temperature and/or a voltage which is too high or too low.
  • microcomputer 44 , contacts 32 , 34 , and 36 , and battery pack 28 are designed to provide a method of identifying different types of batteries 54 housed in battery pack 28 .
  • the steps of such method include positioning tap 64 between adjacent cells 66 of each battery 54 , connecting an identification terminal 62 to tap 64 so that a tap voltage V T indicative of a particular battery type is provided thereto, electrically coupling battery 54 to microcomputer 44 by means of positive terminals 58 , negative terminal 60 , and identification terminal 62 , comparing tap voltage V T to a plurality of specified voltage ranges stored in microcomputer 44 , and identifying the particular type of battery 54 from the specified voltage range within which tap voltage V T lies.
  • the method also may include the step of supplying a charging current I c to battery 54 in accordance with a charging algorithm in microcomputer 44 applicable to the particular battery type.
  • circuitry described herein may be incorporated in handheld mobile telephone 10 or in a battery charger accessory 100 such as the desk charger depicted in FIG. 2 .
  • handheld mobile telephone generally 12 main housing 14 front surface of main housing 16 keypad 18 display 20 speaker 24 rear surface of main housing 26 cavity of main housing 28 battery pack (generally) 30 interface for coupling to battery pack 32A first contact (positive-nickel metal hydride type) 32B second contact (positive-lithium type) 34 third contact (negative) 36 fourth contact (identification) 38 charging circuitry (generally) 40 current source 41 AC/DC adapter slot in handheld mobile telephone 42 switching device 43 input to microcomputer (V T ) 44 microcomputer 45 input to microcomputer (V B ) 46 load (resistor) 47 input to microcomputer (V A -V B ) 48 differential amplifier 49 output from differential amplifier 50 voltage regulator 51 input to microcomputer (V R ) 52 housing of battery pack 54 battery 56 interface for coupling to handheld mobile telephone 58 positive terminal 60 negative terminal 62 identification terminal 64 tap 66 cells of battery 68 fuse 70 protection circuit 100 battery charger accessory V A voltage upstream of load V B voltage from battery V T tap voltage from identification contact V R regulated voltage I C

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)
US08/668,647 1996-06-12 1996-06-12 Apparatus and method for identifying and charging batteries of different types Expired - Lifetime US6625477B1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US08/668,647 US6625477B1 (en) 1996-06-12 1996-06-12 Apparatus and method for identifying and charging batteries of different types
BR9709693A BR9709693A (pt) 1996-06-12 1997-06-11 Aparelho e processo para identificar bateias de diferentes tipos embalagem de bateria para um telefone móvel de mão
AU33853/97A AU3385397A (en) 1996-06-12 1997-06-11 Apparatus and method for identifying and charging batteries of different types
EE9800431A EE04073B1 (et) 1996-06-12 1997-06-11 Seadeldis ja meetod patarei tüübi identifitseerimiseks ning vastav patareiplokk
EP97929902A EP0904623B1 (en) 1996-06-12 1997-06-11 Apparatus and method for identifying and charging batteries of different types
PCT/US1997/010041 WO1997048163A1 (en) 1996-06-12 1997-06-11 Apparatus and method for identifying and charging batteries of different types
DE69711875T DE69711875T2 (de) 1996-06-12 1997-06-11 Gerät und verfahren zur identifikation und ladung verschiedener batterietypen
CN97195471A CN1089499C (zh) 1996-06-12 1997-06-11 用于识别和充电不同类型的电池的设备和方法
HK99103120A HK1018129A1 (en) 1996-06-12 1999-07-20 Apparatus and method for identifying and charging batteries of different types

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/668,647 US6625477B1 (en) 1996-06-12 1996-06-12 Apparatus and method for identifying and charging batteries of different types

Publications (1)

Publication Number Publication Date
US6625477B1 true US6625477B1 (en) 2003-09-23

Family

ID=24683193

Family Applications (1)

Application Number Title Priority Date Filing Date
US08/668,647 Expired - Lifetime US6625477B1 (en) 1996-06-12 1996-06-12 Apparatus and method for identifying and charging batteries of different types

Country Status (9)

Country Link
US (1) US6625477B1 (zh)
EP (1) EP0904623B1 (zh)
CN (1) CN1089499C (zh)
AU (1) AU3385397A (zh)
BR (1) BR9709693A (zh)
DE (1) DE69711875T2 (zh)
EE (1) EE04073B1 (zh)
HK (1) HK1018129A1 (zh)
WO (1) WO1997048163A1 (zh)

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020147864A1 (en) * 2001-04-05 2002-10-10 Seiko Epson Corporation Image and sound output system via network
US20040062387A1 (en) * 2001-02-13 2004-04-01 O'connor Gavin Paul Battery protection circuit
US20050099156A1 (en) * 2003-10-07 2005-05-12 Erich Brenner Battery determination system for battery-powered devices
US20070069686A1 (en) * 2005-09-23 2007-03-29 Metabowerke Gmbh Rechargeable battery pack, in particular for use with electrical hand tool devices, charging device, and rechargeable battery pack and charging device system
US20070182367A1 (en) * 2006-01-31 2007-08-09 Afshin Partovi Inductive power source and charging system
US20070216350A1 (en) * 2006-02-27 2007-09-20 Matsushita Electric Works, Ltd. Charging apparatus
US20070279002A1 (en) * 2006-06-01 2007-12-06 Afshin Partovi Power source, charging system, and inductive receiver for mobile devices
US20080174263A1 (en) * 2007-01-22 2008-07-24 Snap-On Incorporated Battery charger for different capacity cells
US20090096413A1 (en) * 2006-01-31 2009-04-16 Mojo Mobility, Inc. System and method for inductive charging of portable devices
CN101685897A (zh) * 2008-09-24 2010-03-31 三洋电机株式会社 电池系统及电池组
US20110050164A1 (en) * 2008-05-07 2011-03-03 Afshin Partovi System and methods for inductive charging, and improvements and uses thereof
US20110163725A1 (en) * 2010-01-05 2011-07-07 Microsoft Corporation Connectors for battery-powered devices
US20110167179A1 (en) * 2010-01-05 2011-07-07 Microsoft Corporation Providing signals to electronic connectors
US8575899B2 (en) 2009-07-16 2013-11-05 Schumacher Electric Corporation Battery charger with automatic voltage detection
US8890470B2 (en) 2010-06-11 2014-11-18 Mojo Mobility, Inc. System for wireless power transfer that supports interoperability, and multi-pole magnets for use therewith
US9106083B2 (en) 2011-01-18 2015-08-11 Mojo Mobility, Inc. Systems and method for positioning freedom, and support of different voltages, protocols, and power levels in a wireless power system
US9356659B2 (en) 2011-01-18 2016-05-31 Mojo Mobility, Inc. Chargers and methods for wireless power transfer
US9496732B2 (en) 2011-01-18 2016-11-15 Mojo Mobility, Inc. Systems and methods for wireless power transfer
US20170149262A1 (en) * 2010-09-17 2017-05-25 Schumacher Electric Corp. Portable Battery Booster
US9722447B2 (en) 2012-03-21 2017-08-01 Mojo Mobility, Inc. System and method for charging or powering devices, such as robots, electric vehicles, or other mobile devices or equipment
US9837846B2 (en) 2013-04-12 2017-12-05 Mojo Mobility, Inc. System and method for powering or charging receivers or devices having small surface areas or volumes
US10115520B2 (en) 2011-01-18 2018-10-30 Mojo Mobility, Inc. Systems and method for wireless power transfer
US10446885B2 (en) 2016-05-13 2019-10-15 Schumacher Electric Corporation Battery charger with battery state detection
US10666068B2 (en) * 2010-04-07 2020-05-26 Black & Decker Inc. Battery pack
US11201500B2 (en) 2006-01-31 2021-12-14 Mojo Mobility, Inc. Efficiencies and flexibilities in inductive (wireless) charging
US11329511B2 (en) 2006-06-01 2022-05-10 Mojo Mobility Inc. Power source, charging system, and inductive receiver for mobile devices
US11398747B2 (en) 2011-01-18 2022-07-26 Mojo Mobility, Inc. Inductive powering and/or charging with more than one power level and/or frequency
US11444485B2 (en) 2019-02-05 2022-09-13 Mojo Mobility, Inc. Inductive charging system with charging electronics physically separated from charging coil
US11674490B2 (en) 2018-08-30 2023-06-13 Schumacher Electric Corporation Multifunctional battery booster
US11973366B2 (en) 2020-10-20 2024-04-30 Schumacher Electric Corporation Battery booster
US12040625B2 (en) 2023-01-23 2024-07-16 Mojo Mobility Inc. System and method for inductive charging of portable devices

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0926798A1 (en) * 1997-12-24 1999-06-30 Nokia Mobile Phones Ltd. Battery type determination for a radio telephone or battery charger
US20070069689A1 (en) * 2005-09-27 2007-03-29 Shum King M Battery charger
CN101354431B (zh) * 2008-08-26 2011-06-08 崧顺电子（深圳）有限公司 用于识别电池类型的装置和方法
DE102010046643A1 (de) * 2010-09-25 2012-04-26 Jan Wilbert Signalausgang an Akku- betriebenen Kleingeräten zur Steuerung der Ladespannung des Ladegerätes
TW201237758A (en) * 2011-03-15 2012-09-16 Askey Computer Corp Lithium cell simulating device
CN103675689A (zh) * 2012-09-24 2014-03-26 联想(北京)有限公司 一种电池检测方法及装置
CN103078363A (zh) * 2012-12-13 2013-05-01 广东欧珀移动通信有限公司 一种电池电芯识别电路及其识别方法
CN103117580B (zh) * 2013-02-19 2015-08-19 惠州Tcl移动通信有限公司 具有电池兼容功能的移动终端及电池使用、充电控制方法
CN109450004A (zh) * 2018-10-12 2019-03-08 珠海格力电器股份有限公司 用电设备接口和用电设备

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4006396A (en) 1974-01-18 1977-02-01 Motorola, Inc. Universal battery charging apparatus
US4061956A (en) 1975-11-06 1977-12-06 Utah Research And Development Company Electronic DC battery charger
GB1564691A (en) 1978-03-14 1980-04-10 Chloride Group Ltd Dual voltage battery powered electric systems
US4628243A (en) 1984-10-11 1986-12-09 General Electric Company Battery charging system having means for distinguishing between primary and secondary batteries
WO1990010334A1 (en) 1989-02-21 1990-09-07 Moli Energy Limited Improvement of safety of batteries containing parallel arrays of rechargeable lithium cells
US4965507A (en) 1989-07-07 1990-10-23 Eveready Battery Company, Inc. Battery charger for detecting the current rate of charge for rechargeable batteries
US4965738A (en) 1988-05-03 1990-10-23 Anton/Bauer, Inc. Intelligent battery system
JPH0496629A (ja) 1990-08-08 1992-03-30 Japan Storage Battery Co Ltd 組電池の充電制御方法
US5237257A (en) * 1989-04-21 1993-08-17 Motorola, Inc. Method and apparatus for determining battery type and modifying operating characteristics
US5355073A (en) 1992-09-30 1994-10-11 Compaq Computer Corporation Battery pack sensor for an AC adapter
US5411816A (en) 1992-07-02 1995-05-02 Motorola, Inc. Method and apparatus for determining battery characteristics
US5565756A (en) * 1994-07-11 1996-10-15 Motorola, Inc. Microprocessor controlled portable battery charger and method of charging using same
US5608306A (en) * 1994-03-15 1997-03-04 Ericsson Inc. Rechargeable battery pack with identification circuit, real time clock and authentication capability
US5656917A (en) * 1995-12-14 1997-08-12 Motorola, Inc. Battery identification apparatus and associated method
US5705915A (en) * 1997-03-03 1998-01-06 Motorola, Inc. Method for charging a battery

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4006396A (en) 1974-01-18 1977-02-01 Motorola, Inc. Universal battery charging apparatus
US4061956A (en) 1975-11-06 1977-12-06 Utah Research And Development Company Electronic DC battery charger
GB1564691A (en) 1978-03-14 1980-04-10 Chloride Group Ltd Dual voltage battery powered electric systems
US4628243A (en) 1984-10-11 1986-12-09 General Electric Company Battery charging system having means for distinguishing between primary and secondary batteries
US4965738A (en) 1988-05-03 1990-10-23 Anton/Bauer, Inc. Intelligent battery system
WO1990010334A1 (en) 1989-02-21 1990-09-07 Moli Energy Limited Improvement of safety of batteries containing parallel arrays of rechargeable lithium cells
US5237257A (en) * 1989-04-21 1993-08-17 Motorola, Inc. Method and apparatus for determining battery type and modifying operating characteristics
US4965507A (en) 1989-07-07 1990-10-23 Eveready Battery Company, Inc. Battery charger for detecting the current rate of charge for rechargeable batteries
JPH0496629A (ja) 1990-08-08 1992-03-30 Japan Storage Battery Co Ltd 組電池の充電制御方法
US5411816A (en) 1992-07-02 1995-05-02 Motorola, Inc. Method and apparatus for determining battery characteristics
US5355073A (en) 1992-09-30 1994-10-11 Compaq Computer Corporation Battery pack sensor for an AC adapter
US5608306A (en) * 1994-03-15 1997-03-04 Ericsson Inc. Rechargeable battery pack with identification circuit, real time clock and authentication capability
US5565756A (en) * 1994-07-11 1996-10-15 Motorola, Inc. Microprocessor controlled portable battery charger and method of charging using same
US5656917A (en) * 1995-12-14 1997-08-12 Motorola, Inc. Battery identification apparatus and associated method
US5705915A (en) * 1997-03-03 1998-01-06 Motorola, Inc. Method for charging a battery

Cited By (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040062387A1 (en) * 2001-02-13 2004-04-01 O'connor Gavin Paul Battery protection circuit
US6961592B2 (en) * 2001-02-13 2005-11-01 O'connor Gavin Paul Battery protection circuit
US20020147864A1 (en) * 2001-04-05 2002-10-10 Seiko Epson Corporation Image and sound output system via network
US20050099156A1 (en) * 2003-10-07 2005-05-12 Erich Brenner Battery determination system for battery-powered devices
US7439706B2 (en) * 2003-10-07 2008-10-21 Akg Acoustics Gmbh Battery determination system for battery-powered devices
US20070069686A1 (en) * 2005-09-23 2007-03-29 Metabowerke Gmbh Rechargeable battery pack, in particular for use with electrical hand tool devices, charging device, and rechargeable battery pack and charging device system
US7570013B2 (en) * 2005-09-23 2009-08-04 Metabowerke Gmbh Rechargeable battery pack, in particular for use with electrical hand tool devices, charging device, and rechargeable battery pack and charging device system
US11316371B1 (en) 2006-01-31 2022-04-26 Mojo Mobility, Inc. System and method for inductive charging of portable devices
US7952322B2 (en) 2006-01-31 2011-05-31 Mojo Mobility, Inc. Inductive power source and charging system
US11201500B2 (en) 2006-01-31 2021-12-14 Mojo Mobility, Inc. Efficiencies and flexibilities in inductive (wireless) charging
US20090096413A1 (en) * 2006-01-31 2009-04-16 Mojo Mobility, Inc. System and method for inductive charging of portable devices
US20070182367A1 (en) * 2006-01-31 2007-08-09 Afshin Partovi Inductive power source and charging system
US12027873B2 (en) 2006-01-31 2024-07-02 Mojo Mobility Inc. System and method for inductive charging of portable devices
US9577440B2 (en) 2006-01-31 2017-02-21 Mojo Mobility, Inc. Inductive power source and charging system
US11342792B2 (en) 2006-01-31 2022-05-24 Mojo Mobility, Inc. System and method for inductive charging of portable devices
US9276437B2 (en) 2006-01-31 2016-03-01 Mojo Mobility, Inc. System and method that provides efficiency and flexiblity in inductive charging
US9793721B2 (en) 2006-01-31 2017-10-17 Mojo Mobility, Inc. Distributed charging of mobile devices
US11349315B2 (en) 2006-01-31 2022-05-31 Mojo Mobility, Inc. System and method for inductive charging of portable devices
US11404909B2 (en) 2006-01-31 2022-08-02 Mojo Mobillity Inc. Systems for inductive charging of portable devices that include a frequency-dependent shield for reduction of electromagnetic interference and heat during inductive charging
US20110221385A1 (en) * 2006-01-31 2011-09-15 Mojo Mobility, Inc. Inductive power source and charging system
US8169185B2 (en) 2006-01-31 2012-05-01 Mojo Mobility, Inc. System and method for inductive charging of portable devices
US11411433B2 (en) 2006-01-31 2022-08-09 Mojo Mobility, Inc. Multi-coil system for inductive charging of portable devices at different power levels
US11462942B2 (en) 2006-01-31 2022-10-04 Mojo Mobility, Inc. Efficiencies and method flexibilities in inductive (wireless) charging
US8629654B2 (en) 2006-01-31 2014-01-14 Mojo Mobility, Inc. System and method for inductive charging of portable devices
US11569685B2 (en) 2006-01-31 2023-01-31 Mojo Mobility Inc. System and method for inductive charging of portable devices
US8947047B2 (en) 2006-01-31 2015-02-03 Mojo Mobility, Inc. Efficiency and flexibility in inductive charging
US7843165B2 (en) * 2006-02-27 2010-11-30 Panasonic Electric Works Co., Ltd. Charging apparatus
US20070216350A1 (en) * 2006-02-27 2007-09-20 Matsushita Electric Works, Ltd. Charging apparatus
US7948208B2 (en) 2006-06-01 2011-05-24 Mojo Mobility, Inc. Power source, charging system, and inductive receiver for mobile devices
US11601017B2 (en) 2006-06-01 2023-03-07 Mojo Mobility Inc. Power source, charging system, and inductive receiver for mobile devices
US11121580B2 (en) 2006-06-01 2021-09-14 Mojo Mobility, Inc. Power source, charging system, and inductive receiver for mobile devices
US20070279002A1 (en) * 2006-06-01 2007-12-06 Afshin Partovi Power source, charging system, and inductive receiver for mobile devices
US8629652B2 (en) 2006-06-01 2014-01-14 Mojo Mobility, Inc. Power source, charging system, and inductive receiver for mobile devices
US11329511B2 (en) 2006-06-01 2022-05-10 Mojo Mobility Inc. Power source, charging system, and inductive receiver for mobile devices
US9461501B2 (en) 2006-06-01 2016-10-04 Mojo Mobility, Inc. Power source, charging system, and inductive receiver for mobile devices
US20080174263A1 (en) * 2007-01-22 2008-07-24 Snap-On Incorporated Battery charger for different capacity cells
US20110050164A1 (en) * 2008-05-07 2011-03-03 Afshin Partovi System and methods for inductive charging, and improvements and uses thereof
US11606119B2 (en) 2008-05-07 2023-03-14 Mojo Mobility Inc. Metal layer for inductive power transfer
US11211975B2 (en) 2008-05-07 2021-12-28 Mojo Mobility, Inc. Contextually aware charging of mobile devices
US8278869B2 (en) 2008-09-24 2012-10-02 Sanyo Electric Co., Ltd. Battery system and battery pack
CN101685897A (zh) * 2008-09-24 2010-03-31 三洋电机株式会社 电池系统及电池组
EP2953202A2 (en) 2009-07-16 2015-12-09 Schumacher Electric Corporation Battery charger with automatic voltage detection
US8922172B2 (en) 2009-07-16 2014-12-30 Schumacher Electric Corporation Battery charger with automatic voltage detection
US9874611B2 (en) 2009-07-16 2018-01-23 Schumacher Electric Corporation Battery charger with automatic voltage detection
US9529052B2 (en) 2009-07-16 2016-12-27 Schumacher Electric Corporation Battery charger with automatic voltage detection
US8575899B2 (en) 2009-07-16 2013-11-05 Schumacher Electric Corporation Battery charger with automatic voltage detection
US9054534B2 (en) 2010-01-05 2015-06-09 Microsoft Technology Licensing, Llc Connectors for battery-powered devices
US20110167179A1 (en) * 2010-01-05 2011-07-07 Microsoft Corporation Providing signals to electronic connectors
US8799540B2 (en) 2010-01-05 2014-08-05 Microsoft Corporation Providing signals to electronic connectors
US20110163725A1 (en) * 2010-01-05 2011-07-07 Microsoft Corporation Connectors for battery-powered devices
US10666068B2 (en) * 2010-04-07 2020-05-26 Black & Decker Inc. Battery pack
US11283306B2 (en) 2010-06-11 2022-03-22 Mojo Mobility, Inc. Magnet with multiple opposing poles on a surface for use with magnetically sensitive components
US10714986B2 (en) 2010-06-11 2020-07-14 Mojo Mobility, Inc. Intelligent initiation of inductive charging process
US8890470B2 (en) 2010-06-11 2014-11-18 Mojo Mobility, Inc. System for wireless power transfer that supports interoperability, and multi-pole magnets for use therewith
US8896264B2 (en) 2010-06-11 2014-11-25 Mojo Mobility, Inc. Inductive charging with support for multiple charging protocols
US8901881B2 (en) 2010-06-11 2014-12-02 Mojo Mobility, Inc. Intelligent initiation of inductive charging process
US20170149262A1 (en) * 2010-09-17 2017-05-25 Schumacher Electric Corp. Portable Battery Booster
US9106083B2 (en) 2011-01-18 2015-08-11 Mojo Mobility, Inc. Systems and method for positioning freedom, and support of different voltages, protocols, and power levels in a wireless power system
US9112364B2 (en) 2011-01-18 2015-08-18 Mojo Mobility, Inc. Multi-dimensional inductive charger and applications thereof
US10115520B2 (en) 2011-01-18 2018-10-30 Mojo Mobility, Inc. Systems and method for wireless power transfer
US9112363B2 (en) 2011-01-18 2015-08-18 Mojo Mobility, Inc. Intelligent charging of multiple electric or electronic devices with a multi-dimensional inductive charger
US9112362B2 (en) 2011-01-18 2015-08-18 Mojo Mobility, Inc. Methods for improved transfer efficiency in a multi-dimensional inductive charger
US9496732B2 (en) 2011-01-18 2016-11-15 Mojo Mobility, Inc. Systems and methods for wireless power transfer
US9356659B2 (en) 2011-01-18 2016-05-31 Mojo Mobility, Inc. Chargers and methods for wireless power transfer
US9178369B2 (en) 2011-01-18 2015-11-03 Mojo Mobility, Inc. Systems and methods for providing positioning freedom, and support of different voltages, protocols, and power levels in a wireless power system
US11398747B2 (en) 2011-01-18 2022-07-26 Mojo Mobility, Inc. Inductive powering and/or charging with more than one power level and/or frequency
US9722447B2 (en) 2012-03-21 2017-08-01 Mojo Mobility, Inc. System and method for charging or powering devices, such as robots, electric vehicles, or other mobile devices or equipment
US11114886B2 (en) 2013-04-12 2021-09-07 Mojo Mobility, Inc. Powering or charging small-volume or small-surface receivers or devices
US11929202B2 (en) 2013-04-12 2024-03-12 Mojo Mobility Inc. System and method for powering or charging receivers or devices having small surface areas or volumes
US9837846B2 (en) 2013-04-12 2017-12-05 Mojo Mobility, Inc. System and method for powering or charging receivers or devices having small surface areas or volumes
US11292349B2 (en) 2013-04-12 2022-04-05 Mojo Mobility Inc. System and method for powering or charging receivers or devices having small surface areas or volumes
US11201361B2 (en) 2016-05-13 2021-12-14 Schumacher Electric Corporation Battery charger with battery state detection
US10446885B2 (en) 2016-05-13 2019-10-15 Schumacher Electric Corporation Battery charger with battery state detection
US11688891B2 (en) 2016-05-13 2023-06-27 Schumacher Electric Corporation Battery charger with battery state detection
US10804574B2 (en) 2016-05-13 2020-10-13 Schumacher Electric Corporation Battery charger with battery state detection
US11674490B2 (en) 2018-08-30 2023-06-13 Schumacher Electric Corporation Multifunctional battery booster
US11811238B2 (en) 2019-02-05 2023-11-07 Mojo Mobility Inc. Inductive charging system with charging electronics physically separated from charging coil
US11444485B2 (en) 2019-02-05 2022-09-13 Mojo Mobility, Inc. Inductive charging system with charging electronics physically separated from charging coil
US11973366B2 (en) 2020-10-20 2024-04-30 Schumacher Electric Corporation Battery booster
US12040625B2 (en) 2023-01-23 2024-07-16 Mojo Mobility Inc. System and method for inductive charging of portable devices

Also Published As

Publication number Publication date
CN1222262A (zh) 1999-07-07
WO1997048163A1 (en) 1997-12-18
DE69711875D1 (de) 2002-05-16
EE04073B1 (et) 2003-06-16
HK1018129A1 (en) 1999-12-10
AU3385397A (en) 1998-01-07
EP0904623B1 (en) 2002-04-10
BR9709693A (pt) 1999-08-10
EE9800431A (et) 1999-06-15
CN1089499C (zh) 2002-08-21
EP0904623A1 (en) 1999-03-31
DE69711875T2 (de) 2002-11-14

Similar Documents

Publication Publication Date Title
US6625477B1 (en) Apparatus and method for identifying and charging batteries of different types
US5729115A (en) Apparatus and method for identifying and charging batteries of different types
EP0925627B1 (en) Apparatus and method of monitoring battery temperature during charging
EP0657982B1 (en) Battery system for portable electric equipment
US4628243A (en) Battery charging system having means for distinguishing between primary and secondary batteries
US5859522A (en) Accessory identification apparatus and method
US5925942A (en) Power supply control apparatus and method suitable for use in an electronic device
US5565756A (en) Microprocessor controlled portable battery charger and method of charging using same
US5646501A (en) Flexible power architecture which supports multiple battery technologies for use with a portable device
US8686682B2 (en) Power supply for battery powered devices
US6172481B1 (en) Method and apparatus for rapid charging batteries under sub-optimal interconnect conditions
US7439706B2 (en) Battery determination system for battery-powered devices
JPH06164469A (ja) オンフック／オフフック検出手段及び電池識別手段を備えた携帯端末装置用充電器
CN101334452B (zh) 电池测试装置
AU746354B2 (en) An identification arrangement and method
EP0824778B1 (en) Intelligent battery charging in a hand-held phone
EP0998004A4 (en) OVERLOAD PREVENTION METHOD, CHARGER CIRCUIT, ELECTRONIC DEVICE AND TIMER
KR20040092265A (ko) 배터리 충전전류 가변 장치 및 그 방법
US20030137283A1 (en) Electronic apparatus having charging function
JPH07153497A (ja) 複数種電池対応充電器
JPH08331770A (ja) 二次電池の充放電制御方法及び装置
US6472849B1 (en) Reverse blocking function integrated into charging circuit
JPH06237536A (ja) 電池使用システム
CN211376863U (zh) 一种电池包
JPH04281332A (ja) 充電式電池装置

Legal Events

Date Code Title Description
AS Assignment

Owner name: ERICSSON INC., NORTH CAROLINA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WAKEFIELD, IVAN NELSON;REEL/FRAME:008042/0380

Effective date: 19960529

STCF Information on status: patent grant

Free format text: PATENTED CASE

FPAY Fee payment

Year of fee payment: 4

FPAY Fee payment

Year of fee payment: 8

FPAY Fee payment

Year of fee payment: 12